aStone: I like you skills! I also made the same platform curiosity of Westmarch. Great building instructions, yea? Listen, I have to make a new modification after seeing your photo. I like the idea of rubber band to hold battery!!! This way you don't have to remove motor cover to replace battery! Love that simple idea. (Why didn't I think of that?) I also made a few mods, if you care to think about. 1) I removed the extra aluminum at the points because I was afraid I might step into them at night. That extra pointy part doesn't need to be there. 2) I put a micro switch to shut off power to motor at end of travel, in case I may miss the time ending the travel of platform. I may be inside getting a drink! haha 3) I also cut off extra plywood in front of motor and the same on the other side. Not needed and also cuts down on weight. I really enjoyed building the platform. It gave me a sense of accomplishment! Good luck and clear skies!